以碱改性后的ZSM-5分子筛为载体，采用等体积浸渍法制备双金属负载型催化剂，并利用SEM、XRF、XRD、BET、FT-IR等技术对其进行表征，探究其催化臭氧对废水降解效果的影响。结果表明，以Fe、Co双金属为活性组分制备的Fe-Co/ZSM-5催化性能较好，其表面颗粒组分均匀分布，具有较大的比表面积及良好的孔隙结构。用于处理300 mL质量浓度为100 mg/L的苯甲酸钠废水时，当反应温度为50℃、溶液pH在6~7之间、臭氧质量浓度为4.0 mg/L、臭氧通量为2.0 L/min、催化剂投加质量浓度为1.0 g/L时，废水的降解效果最佳；在80 min时，苯甲酸钠的去除率可达93.8%，废水COD的降解率可达91.3%。

The supported bimetallic catalysts are prepared through an equal volume impregnation method by using ZSM-5 as carrier, and characterized by means of SEM, XRF, XRD, BET and FT-IR.The catalytic activity of the catalysts for ozonation of sodium benzoate in wastewater is evaluated.The results show that Fe-Co/ZSM-5 catalyst prepared with Fe and Co as active components has better catalytic performance, with uniform distribution of surface particle components, large specific surface area and good pore structure.The degradation effect of wastewater reaches the best if the catalyst is used to treat with 300 mL of sodium benzoate-containing wastewater with a concentration of 100 mg·L^-1 under the conditions that reaction temperature is at 50℃, pH of the solution is between 6 and 7, ozone concentration is 4.0 mg·L^-1, ozone flux is 2.0 L·min^-1, and the catalyst dosage is 1.0 g·L^-1.The removal rate of sodium benzoate can reach 93.8% and the degradation rate of COD in wastewater can reach 91.3% when the reaction has performed for 80 minutes.

徐增益(1995-),女,硕士研究生,研究方向为工业废水处理与控制,1181512974@qq.com